Have you ever found out if you can get the Fat Head Minnows somewhere? If not, what other cheap baitfish is accessible? You need something to start testing with, something cheap. Perhaps even throw up a picture here to ID what you can get. Up here, if FHM can't live in the water, nothing else can. So it would be a good test there, if you can get them. Put in some cover for them like a dead tree with lots of small branches, and then add spawning structure for them like a pallet in shallow water. See if they make it for a year's cycle. If they don't, then you have to figure it out.
